Form for concrete structures.



J. S. OFKEIFF.

FORM FOR CONCRETE STRUCTURES.

APPLICATION nun 1mm 2a, 1913.

1, 1 00,488. Patented June 16, 1914. I 2 BHEBTFSHEET 1.

4 By wwuvF "TOMB s J. S. OKEIFF. FORM EOE CONCRETE STRUCTURES.

APPLICATION FILED JUNB23, 1913.

JAMES SILAS OKEIFF, 0F ALTOONA, PENNSYLVANIA.

FORM FOR CONCRETE STRUCTURES.

Specification of Letters Patent. Patented June 16, 1914,

Application filed June 23, 1913. Serial No. 775,223.

To all who-m it may concern: .1

Be it known that 1, JAMES S. OKmrr, a citizen of the United States, and a resident of Altoona, in the county of Blair and State of Pennsylvania, have made certain new and useful Improvements in Forms for Concrete Structures, of which the following is a specification.

My invention relates to forms for concrete structures, my more particular purpose being to produce plates of suitable shape to be built into a mold to be used for concrete walls, the plates having such form that the may be readily connected together in di fcrent ways and also readily disengaged.

My invention further relates to an improved form of tie to be built into the Wall, said tie being provided with means for facilitating the connect-ion of the plates with each other, and for bracing the wall molds as a whole until. the concrete is set.

My invention further comprehends various details of construction suitable .foruse in connection with forms of this general type.

Reference is made to theaccompanying drawings forming a part of this specification, and in which like letters indicate like parts.

Figure 1 is a plan view of the composite wall mold fora building. Fig. 2 is a detail showing, in perspective, certain cornerplates "used in forming one of the outer corners of the mold. Fig. 3 is a section on the line 33 of Fig. 2, looking in the direction of the arrow, and showing one of the keys employed for holding the plates together. Fig. l is adetail showing in perspective two of the mold plates connected together by wall ties. Fig. 5 is a vertical section through the parts shown in F ig. 4. Fig. 6 is.a vertical section showing a form of my invention suit able for use in veneering wooden walls with concrete. Fig, is a detail showing one of the plates'of specialconstruction. Fig. 8 is a perspective, showing a wall tie of a kind especially suitable for use in veneering. Fig. 9 is a perspective of another wall tie. Fig. 10isa perspective of another tie, more especially suitable for eneering work.

I provide a number of plates 9, each hav ing a thick rim or border 10 integral with it. This rim is provided with lugs 11, also integral with it, each lug being provided with a key slot 12 extending through it. The

lain- 0? each plate are gl-wmo'nd in na ve Hm lugs of each pair being in registry with each other so that the key slots 12 are in axial alinement, as may be understood from Fi 4. Each plate 9 is further provided wit four notches 13, and with four lugs 14, partially bounding these notches and extending laterally away from the plane of the plate. Each of these lugs 14 is provided with a key slot-'15. I also provide a few plates of the type shown at 9. These plates are for the most part like the plate 9, but they differ therefrom in being provided with slots 16, and with raised p0rt-10ns l7 encircling these "slots for the purpose of strengthening the plates 9 immediately adjacent to the slots.

I provide a number of keys 20, each having a stem 18 and a tine 19, these parts being so arranged that the stem 18 may be extended through slots 12, 15, and the key may be turned by hand so as to lock two plates together. I also provide a number of wall ties 21, each having the form of a thin flat bar which may be made of cast iron or cast steel, many other suitable material having strength combined with a certain amount of brittleness. Each wall tie 21 is also provided upon its oppositely disposed edges with notches 22 whereby it isweakened. Each wall tie 21 is further provided with key slots 22 through which the stem 18 of a key may be extended.

Two portions 23 of each walltie 21 carrying the key slots 22 are adapted'to be broken off from the main body portion of the tie. This is why the notches 22 are provided. For the purpose of rendering the mold as a whole adjustable within certain limits as to size, I

provide some plates 24 of difierent width in one direction than in another, as may be understood from Fig. 7. These plates 24am provided with lugs 25 corresponding to the lugs 11 of the plates 9. I also provide corner plates v26 having lugs 27, these corner plates being especially adapted for shaping the angles of the inner facing or wall of the mold, as may be understood from Fig. l. A portion of the concrete in a plastic condition is shown at 28. I

The form of the plates 24 may be understood from Fig. 7. Each ofthese plates is provided with two'lugs 29 extending laterally from it, and with two notches 30 which are partially bounded by these lugs. Each plate 24: is further provided with a slot 81 and with a thickened portion 32 encircling this \slot. This plate with its slots 31 may lm "sod otter the manner of the Blair! f nrnvided with its slots 16, as above describedthe only difference being that the plate 42 is narrower than the plate 9.

In Fig. 6 I show how my invention may be'employed for the purpose of attaching veneering to wooden walls already constructed/ The, weather boarding, or outer facing of the wall is shown at 34, the inner facing'appearing' at 33, and between these facings is-a spacing timber 35. At the'bottom of the outer face 34 is a beam 36. In order to apply veneering of concrete to such walls I use the bracket shown in Fig. 8. This bracket is provided with a base 37 and with a tie bar 38 integral with this base. The tie bar 38 is provided with a key slot 39 and with notches 40 for the purpose of weakening the tie bar and thus enabling it to be readily broken at the proper time. The bracket 37 is provided with notches 41,

42. By driving nails or. screws 43 through,

. these notches, the base 37 of the bracket is secured upon the adjacent wall facing 34. This being done, a plate 9 may be connected with the outer end of the wall tie 38 by aid of keys 18. Any number of the plates 9 may thus be connected edge to edge, as well as to wall ties 38. By placing other plates 9 upon the top of the plate 9 shown in Fig. 6, and securing the lower edge of one plate to the upper edge of the plate below it, by aid of the keys 20, the mold may be constructed of any. desired height. Concrete 44 being poured into the mold and allowed to set, the plates 9 may be removed. The wall ties 38 together with their bases 37 however, are embedded in the concrete and there remain. After the concrete has set the outer or project-ing ends of the plate 9 'are removed. The outer or projecting portions of the wall ties may be broken off at the notches 40. Each tie 38 is provided with a pin 43 which becomes embedded in the concrete and serves to prevent the same from working loose from the tie and consequently from the wall. In some instances, I form the tie, when used for veneering, as shown in Fig. 10. A plate 44 is provided with a hole 45 to accommodate a nail, screw, or other fastening, and is further provided with a projecting flat portion or bar 46, the edges of which are provided with corrugations 47. This construction facilitates holding'the concrete rigidly in position.

The projecting end portions of the ties shown in Figs. 8 and 9 may be used to facilitate the building and removal of scaffolding. The scafi'olding is built upward from the ground and rested at its different stages or landings upon-the extending portions of the wall ties. Aft-ei the completion of the work, however, the .scafi'olding'is re moved, beginning at the top, andas it is taken down, projecting portions of the wall ties are broken off, beginning at the top of the wall.

The operation of my device is as follows: The plates 9, 9, and 26 are connected together as above described and as shown, say, in Figs. 1, 4 and 5, so as to form a wall mold. Concrete 28 is next poured in between the inner and outer facings of the mold andi's allowed to set. The plates are next disengaged from each other and moved higher up and again connected with each other and with the wall. More concrete being added, the wall is built up higher than it was at first. A comparatively few plates in active use may thus be employed for constructing a wall of practically any desired height. When the wall is completed the portions 23 of the wall ties 21 are broken 06; This may thus be done as the scaffolding is taken down, beginning at its top. By the time the last of the scaffolding is removed all of the wall ties will be broken off. The middle portion of each wall tie 21 remains permanently in the wall.

In applying veneering of concrete as above described with reference to Fig. 6, a portion of each tie 38 and all of the accompanyingbases 37 remain permanently embedded in the veneerinq.

I do not limit myself to the precise construction shown, as variations may be. made therein without departing from the spirit of v my invention.

I claim:

A wall mold of the character described comprising spaced series of mold plates or panels having smooth inner faces, each of said plates or panels being substantially rectangular inform and having its vertical side edges provided with outwardly projecting lugs the outer faces of which are flush with said edges and each of which plates or panels is provided along its upper and lower horizontal edges with notches and with outwardly projecting lugs 'the outer surfaces of which are flush with the bases of the notches, the said lugs of said moldplates or panels having key slots, wall ties extending between the upper and lower edges of the mold plates or panels and having their end portions extended into the notches and provided with key slots. keys for connecting the ends of the Wall ties and the adjacent lugs of the wall plates or panels, and keys for-connecting the side lugs of adjacent plates or panels in a horizontal line.

JAMES SILAS OKEIFF.

lVitnesses W. FRANK VAUGHN, I. IV. 'BAITH. 

